fiddly
adjective UK informal uk/ˈfɪd.li/ us/ˈfɪd.li/
微小难弄的，精细而难对付的
difficult to do because the parts involved are small
Repairing a watch is a very fiddly job. 修手表是很精细的活。
I hate painting the fiddly bits in the corner. 我讨厌刷墙角那儿难刷的小地方。